Explore the hidden secret codes of Samsung, HTC, LG, Sony, Oppo and other Android smartphones
So, we've scouted some hidden codes for smartphones by Samsung, HTC, LG, Sony, Motorola, and Oppo. iPhones have hidden codes as well, but we'll be exploring these in a separate article. We've also included generic Android codes that should work on all recent Android devices. Have fun, but be careful - we take no responsibility if these don't work, or work in ways destructive to your phone! Be especially cautious with the factory reset - they don't ask around, they go straight to erasing all data on your device!